Describe the bug
Whenever I try to:

1. Paste multiple URLS (like a list of sites)
2. Convert a classic editor block with multiple URLs.

It tries to embed those URLs as a single link.
Please see the screenshot:
https://gauravtiwari.org/wp-content/uploads/2020/12/screenshot-erro.gif
To reproduce
Steps to rep

In the graphql_map_input_fields_to_wp_query filter, the $post_type is the last parameter. This is inconsistent with the other graphql_map_input_fields_* filters. For example in graphql_map_input_fields_to_get_terms the $taxonomy parameter is the third parameter (while the $context & $info parameters are the last two in all of the graphql_map_input_fields_* filters). For consistency sake, i

The list of AMP Caches is available at https://cdn.ampproject.org/caches.json

This could be pulled in dynamically rather than hard-coding each AMP Cache in \AMP_HTTP::get_amp_cache_hosts():

https://github.com/ampproject/amp-wp/blob/9e049f6554b69e06284ead57d13ef416226a51ec/includes/class-amp-http.php#L191-L239

This is low priority because the list of caches changes infrequently.

The buttons are stacking on top of each other.

Feature description

Based off of work done in #51 and #152 in particular, layer panel height is defaulted to 6 layers.

This should vary with overall window size when UX has defined this.

Awaiting UX! Low priority.

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Acceptance criteria